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Performance Degradation on 0.10.0-preview2

See original GitHub issue

After upgrading a project which uses AvaloniaEdit from 0.9.0 to 0.10.0-preview2 things are working, well, 10 times slower. Using Ubuntu 18.04 LTS KDE, the following markup is used to instantiate and draw the editor:

    FontFamily="Ubuntu Mono"
            ShowTabs="True" />

This is how it was working with 0.9.* (absolutely fast):


This is how it works after the upgrade to 0.10.0-preview* (almost a slideshow):


The following xml file represents the highlighting:

dotnet --info
.NET Core SDK (reflecting any global.json):
 Version:   3.1.100
 Commit:    cd82f021f4

Runtime Environment:
 OS Name:     ubuntu
 OS Version:  18.04
 OS Platform: Linux
 RID:         ubuntu.18.04-x64
 Base Path:   /usr/share/dotnet/sdk/3.1.100/

Host (useful for support):
  Version: 3.1.0
  Commit:  157910edee

.NET Core SDKs installed:
  2.1.802 [/usr/share/dotnet/sdk]
  2.2.402 [/usr/share/dotnet/sdk]
  3.1.100 [/usr/share/dotnet/sdk]

.NET Core runtimes installed:
  Microsoft.AspNetCore.All 2.1.14 [/usr/share/dotnet/shared/Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.All 2.2.8 [/usr/share/dotnet/shared/Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.App 2.1.14 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 2.2.8 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.0 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 2.1.14 [/usr/share/dotnet/shared/Microsoft.NETCore.App]
  Microsoft.NETCore.App 2.2.8 [/usr/share/dotnet/shared/Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.0 [/usr/share/dotnet/shared/Microsoft.NETCore.App]

To install additional .NET Core runtimes or SDKs:

Ping me if any further details are required.

Issue Analytics

  • State:closed
  • Created 3 years ago
  • Comments:13 (5 by maintainers)

github_iconTop GitHub Comments

Gillibaldcommented, Aug 8, 2020

That issue is unrelated. Totally different text rendering stack.

worldbeatercommented, Sep 4, 2020

@aelij just verified with AvaloniaEdit added as a submodule, and can confirm that really fixes the issue on Linux!

Read more comments on GitHub >

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